From 8419c013048b1f15f3fa2fc7c0463d860a04ee3e Mon Sep 17 00:00:00 2001
From: Wolfgang Denk
Date: Tue, 18 Apr 2006 11:05:03 +0200
Subject: MPC5200: enable snooping of DMA transactions on XLB even if no PCI is
 configured; othrwise DMA accesses aren't cache coherent which causes for
 example USB to fail.

---
 cpu/mpc5xxx/cpu_init.c    | 4 ++++
 cpu/mpc5xxx/pci_mpc5200.c | 4 ----
 2 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'cpu/mpc5xxx')

diff --git a/cpu/mpc5xxx/cpu_init.c b/cpu/mpc5xxx/cpu_init.c
index 4a370ffea94..b7e00b3e244 100644
--- a/cpu/mpc5xxx/cpu_init.c
+++ b/cpu/mpc5xxx/cpu_init.c
@@ -152,6 +152,10 @@ void cpu_init_f (void)
 	/* enable timebase */
 	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 13);
 
+	/* Enable snooping for RAM */
+	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 15);
+	*(vu_long *)(MPC5XXX_XLBARB + 0x70) = CFG_SDRAM_BASE | 0x1d;
+
 # if defined(CFG_IPBSPEED_133)
 	/* Motorola reports IPB should better run at 133 MHz. */
 	*(vu_long *)MPC5XXX_ADDECR |= 1;
diff --git a/cpu/mpc5xxx/pci_mpc5200.c b/cpu/mpc5xxx/pci_mpc5200.c
index 1d903459e0a..2f01d5ce996 100644
--- a/cpu/mpc5xxx/pci_mpc5200.c
+++ b/cpu/mpc5xxx/pci_mpc5200.c
@@ -135,10 +135,6 @@ void pci_mpc5xxx_init (struct pci_controller *hose)
 	*(vu_long *)MPC5XXX_PCI_BAR1 = CONFIG_PCI_MEMORY_BUS | (1 << 3);
 	*(vu_long *)MPC5XXX_PCI_TBATR1 = CONFIG_PCI_MEMORY_PHYS | 1;
 
-	/* Enable snooping for RAM */
-	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 15);
-	*(vu_long *)(MPC5XXX_XLBARB + 0x70) = CONFIG_PCI_MEMORY_PHYS | 0x1d;
-
 	/* Park XLB on PCI */
 	*(vu_long *)(MPC5XXX_XLBARB + 0x40) &= ~((7 << 8) | (3 << 5));
 	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (3 << 8) | (3 << 5);
-- 
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